//////////////////////////////////////////////////////////////////////////////////
//                                                                              //
//  This file is part of the buola project (https://code.google.com/p/buola/).  //
//                                                                              //
//  Copyright(c) 2007-2012 Xavi Gratal                                          //
//  gratal AT gmail DOT com                                                     //
//                                                                              //
//  Buola is free software: you can redistribute it and/or modify               //
//  it under the terms of the GNU General Public License as published by        //
//  the Free Software Foundation, either version 3 of the License, or           //
//  (at your option) any later version.                                         //
//                                                                              //
//  Buola is distributed in the hope that it will be useful,                    //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of              //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               //
//  GNU General Public License for more details.                                //
//                                                                              //
//  You should have received a copy of the GNU General Public License           //
//  along with buola.  If not, see <http://www.gnu.org/licenses/>.              //
//                                                                              //
//////////////////////////////////////////////////////////////////////////////////

#ifndef _BUOLA_SCENE_IMPORT_VRML_CPARSER_H_
#define _BUOLA_SCENE_IMPORT_VRML_CPARSER_H_

#include <buola/scene.h>

#include <buola/zz/zrule.h>

#include "ctokenizer.h"
#include "ztoken.h"
#include "ztokentype.h"

namespace buola { namespace scene { namespace vrml {

class CParser
{
    enum EStatus
    {
        STATUS_OK,
        STATUS_EOIINSUITESTART,
        STATUS_EOIINSUITEEND
    };

public:    
    CParser();
    
private:
    void CreateGrammar();
    
public:
    PTransform Parse(const std::vector<char> &pFile);
    
private:    
    CTokenizer mTokenizer;
    
    typedef zz::ZRule<TTokenIt> TVRMLRule;
    
    TVRMLRule rExternProto;
    TVRMLRule rRouteStatement;
    
    EStatus mParserStatus;

    friend struct ZNode;    
    friend struct ZField;
    friend struct ZProto;
};
    
/*namespace vrml */ } /*namespace scene*/ } /*namespace buola*/ }

#endif
